Test Overview
Method
Radial Immunodiffusion (RID)
Method Description
This assay quantitates C1q protein. For Immune Complexes by C1q Binding refer to Immune Complexes, Serum/Plasma
Result Included
Complement Component C1q
Specimen
Specimen Type
Serum/PlasmaContainers
Preferred Containers
Gold top (clot activator & gel)
Acceptable Containers
Lavender top (EDTA)
Volume
Sample Volume
1 mL
Minimum Volume
0.1 mL
Collection & Handling
Collection Instructions
Separate serum within one hour of draw time and refrigerate.
Handling Information
Store and send cold or frozen.
Stability
| Ambient | Refrigerated | Frozen |
|---|---|---|
| 4 days | 10 days | 29 days |
Rejection Criteria
| Criteria | Specification |
|---|---|
| Hemolysis | Gross |
| Lipemia | Gross |
| Specimen | Room Temp. |
Performance & Interpretation
Turnaround Time
13 days
Results
Name
Units
Reference Range
Conversion
-
Complement Component C1qmg/dL5.0 - 8.6
Comment
Low levels of C1q indicate either increased consumption (catabolism) or decreased synthesis.
Referral Location
Out-of-Country
Interface & Setup
HL7 Interface Codes
| Order Code | Result Name | Result Codes | Units |
|---|---|---|---|
| C1QCOMP SP | COMPLEMENT COMPONENT C1Q | 63545 | mg/dL |
Test Version
Last Updated
2023-03-21